So yes - if we can deliver working crash/regression stable update to
F12,
we can for sure do the same for F11. But for some people even small UI
changes are big changes. You would probably argue that RHEL/CentOS is for
these users but it's not actually true - these distros are not very well
suited for desktop usage (hw support is big issue for example). And Ubuntu
is just crap ;-)

But those distros are really the only good option.
Using the previous stable Fedora is not a viable solution for these people.
It only has 7 months of support as "previous stable". That means that to
always be on "previous stable", you have to upgrade twice a year. There goes
the "UI stability". So trying to target the previous stable release at those
people is a losing proposition anyway. Those folks need something with a lot
more than 7 months of support.
Kevin Kofler